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» Parametric video compression using appearance space
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TOG
2008
125views more  TOG 2008»
13 years 7 months ago
Factoring repeated content within and among images
We reduce transmission bandwidth and memory space for images by factoring their repeated content. A transform map and a condensed epitome are created such that all image blocks ca...
Huamin Wang, Yonatan Wexler, Eyal Ofek, Hugues Hop...
PAA
2008
13 years 7 months ago
Recognising facial expressions in video sequences
Abstract We introduce a system that processes a sequence of images of a front-facing human face and recognises a set of facial expressions. We use an efficient appearance-based fac...
José Miguel Buenaposada, Enrique Muñ...
CVPR
2005
IEEE
14 years 1 months ago
Online Selecting Discriminative Tracking Features Using Particle Filter
The paper proposes a method to keep the tracker robust to background clutters by online selecting discriminative features from a large feature space. Furthermore, the feature sele...
Jianyu Wang, Xilin Chen, Wen Gao
ICMCS
2005
IEEE
67views Multimedia» more  ICMCS 2005»
14 years 1 months ago
Head-size equalization for better visual perception of video conferencing
In a video conferencing setting, people often use an elongated meeting table with the major axis along the camera direction. A standard wide angle perspective image of this settin...
Zicheng Liu, Michael F. Cohen
MM
1993
ACM
104views Multimedia» more  MM 1993»
13 years 11 months ago
Panoramic Overviews for Navigating Real-World Scenes
This paper describes an interface which helps people maintain a sense of spatial context while navigating virtual real-world scenes. First, a single panoramic image of the entire ...
Laura Teodosio, Michael Mills